What are the suitable environmental conditions for the growth of Panax notoginseng?
1. Temperature: Temperature is the main factor affecting the normal growth and development of Panax notoginseng. It requires warm winters and cool summers, with small temperature differences across the four seasons, and an annual average temperature of 18-19°C is ideal.
2. Moisture: The growth and development of Panax notoginseng require a moist environment; it fears both drought and waterlogging. Soil moisture should generally be maintained at 25%-30%, and the relative air humidity should ideally be 70%-80%.
3. Light: Panax notoginseng is a shade-loving plant, sensitive to light, and avoids direct sunlight. Its growth and development require a cool, shaded environment with weak sunlight. Therefore, cultivation requires building a shade shed; in spring and autumn, a shading density of 40%-60% is required, and in summer, 60%-70% is required.
4. Soil: Panax notoginseng is suitable for growing in loose, deep soil, with sandy loam rich in humus being best, at a pH of 5.5-7.0.